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    2.
    发明专利
    未知

    公开(公告)号：TR199902030A2

    公开(公告)日：2000-03-21

    申请号：TR9902030

    申请日：1999-08-19

    Applicant: DEGUSSA

    Inventor： FOERSTER DR MARTIN ,  PIROTH JOSEF ,  SCHLACHTER DR ULRICH ,  DOMESLE DR RAINER ,  KRAMPE DR WILLI

    IPC: B01J37/02 ,  F01N3/10 ,  B05D7/24 ,  B01J23/38

    Abstract: The coating dispersion is sucked through the flow channels of a monolithic catalyst support at a rate of 0.1-1 m/s. Excess dispersion is removed from the channels by applying a suction impulse from below. Extraction air is sucked at a rate of 40-1 m/s through the channels and the excess coating dispersion removed from the air stream is removed from the air stream within a time from less than 100 ms after leaving the catalyst support. Process for coating the flow channels of a monolithic cylindrical catalyst support with a coating dispersion comprises vertically directing the cylindrical axis, charging a predetermined amount of dispersion from a storage vessel to the upper front surface of the support, sucking the dispersion through the flow channels, removing excess dispersion from the channels, returning the excess dispersion to the storage vessel and fixing the dispersion by calcining. The coating dispersion is sucked through the flow channels of a monolithic catalyst support at a rate of 0.1-1 m/s. Excess dispersion is removed from the channels by applying a suction impulse from below. Extraction air is sucked at a rate of 40-1 m/s through the channels and the excess coating dispersion removed from the air stream is removed from the air stream within a time from less than 100 ms after leaving the catalyst support.

    8.
    发明专利
    未知

    公开(公告)号：TR199902534A2

    公开(公告)日：2000-05-22

    申请号：TR9902534

    申请日：1999-10-12

    Applicant: DEGUSSA

    Inventor： STREHLAU DR WOLFGANG ,  GOBEL DR ULRICH ,  DOMESLE DR RAINER

    IPC: B01D53/94 ,  B01J23/58 ,  B01J23/63 ,  B01J27/053 ,  B01J27/055

    Abstract: Nitrogen oxide-storage catalyst contains at least one fine particled catalyst material and nitrogen oxide-storage component. The nitrogen oxide-storage has an average particle diameter of less than 1 micrometer after the completion of catalyst production as fine particles of barium sulfate, strontium sulfate or as mixture thereof or as completed or incomplete decomposition product. Independent claims are included for: (a) nitrogen oxide-storage catalyst in the form of a coating on the walls of the flow canals of an inert honeycombed body containing fine particled catalyst material and a nitrogen oxide-storage component and (b) a method of producing nitrogen oxide-storage catalyst.

    9.
    发明专利
    未知

    公开(公告)号：TR199902000A2

    公开(公告)日：2000-04-21

    申请号：TR9902000

    申请日：1999-08-20

    Applicant: DEGUSSA

    Inventor： STREAHLAU DR WOLFGANG ,  GOEBEL DR ULRICH ,  MUSSMANN DR LOTHAR ,  DOMESLE DR RAINER

    IPC: B01D53/86 ,  B01D53/94 ,  B01J20/04 ,  B01J20/30 ,  B01J23/02 ,  B01J23/10 ,  B01J23/58 ,  B01J23/63 ,  B01J35/02 ,  B01J37/03 ,  F01N3/08 ,  F02B1/04

    Abstract: The carrier material is selected from a group doping/donating cerium oxide, cerium/zircon-mixed oxide, calcium titanate, strontium titanate, barium titanate, barium stannate, barium zirconate, magnesium oxide, lanthan oxide, praseodymium oxide, samarium oxide, neodymium oxide, yttrium oxide, yttrium barium cuprate, lead titanate, bismuth titanate, lanthan cobaltate, lanthan manganate and barium cuprate or a mixture. The particles of the storage components has particle diameter of at least 1.5 micronmeter. Nitrogen oxide-storage material comprises at least a storage component for nitrogen oxide in the form of particles of oxide(s), carbonate(s), or hydroxide(s) of earth metals magnesium calcium, strontium and barium as well as alkali metals potassium and caesium on a carrier material. Independent claims are include for the production of storage material and use of nitrogen oxide-storage.

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